POTEMKIN, V. L. On variations for mappings with restrictions on dilation in measure. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 48, n. 5, p. 716–718, 1996. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5306. Acesso em: 5 dec. 2025.